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  <h2 class="title">Other filters</h2>
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     <caption><strong>List of miscellaneous filters</strong></caption>
     
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        <th>ID</th>
        <th>Name</th>
        <th>Options</th>
        <th>Flags</th>
        <th>Description</th>
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        <td><strong><code>FILTER_CALLBACK</code></strong></td>
        <td>&quot;callback&quot;</td>
        <td><span class="type"><a href="language.types.callable.html" class="type callable">callable</a></span> function or method</td>
        <td>All flags are ignored</td>
        <td>Call user-defined function to filter data.</td>
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